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1.
Journal of Experimental and Theoretical Physics - Dzyaloshinskii–Moriya interaction, DMI in short, represents an antisymmetric type of magnetic interactions that favor orthogonal orientation...  相似文献   
2.
New allotropic forms of carbon based on С60 and С20 fullerenes are considered. The most stable carbon compounds are found using an evolution algorithm, and their crystal structure (X-ray diffraction spectra) and electron (band structure) and mechanical (moduli of elasticity, hardness) characteristics are studied. The carbon phase with the tetragonal symmetry with mechanical properties close to those of a diamond crystal and having a narrow band gap is found.  相似文献   
3.
Demin  V. A.  Kvashnin  D. G.  Vancsó  P.  Márk  G. I.  Chernozatonskii  L. A. 《JETP Letters》2020,112(5):305-309
JETP Letters - The electrical conduction characteristics of perforated bilayer graphene nanoribbons are studied by the wave-packet dynamics method. The transport characteristics for typical...  相似文献   
4.
JETP Letters - The electronic and transport properties of new hybrid 2D–1D–2D structures of carbon atoms, which are graphene sheets continuously connected through a fragment of a...  相似文献   
5.
S. A. Koldobskiy  O. Adriani  G. A. Bazilevskaya  G. C. Barbarino  R. Bellotti  E. A. Bogomolov  M. Boezio  V. Bonvicini  M. Bongi  S. Bottai  A. Bruno  A. Vacchi  E. Vannuccini  G. I. Vasilyev  S. A. Voronov  A. M. Galper  C. De Santis  V. Di Felice  G. Zampa  N. Zampa  M. Casolino  D. Campana  A. V. Karelin  P. Carlson  G. Castellini  F. Cafagna  A. A. Kvashnin  A. N. Kvashnin  S. V. Koldashov  S. Y. Krutkov  A. A. Leonov  A. G. Mayorov  V. V. Malakhov  M. Martucci  L. Marcelli  W. Menn  M. Merge  V. V. Mikhailov  E. Mocchiutti  A. Monaco  N. Mori  R. Munini  G. Osteria  B. Panico  P. Papini  P. Picozza  M. Pearce  M. Ricci  S. B. Ricciarini  M. F. Runtso  M. Simon  R. Sparvoli  P. Spillantini  Y. I. Stozhkov  Y. T. Yurkin 《Bulletin of the Russian Academy of Sciences: Physics》2017,81(2):151-153
The preliminary results from measurements of deuteron fluxes in galactic cosmic rays (GCR) in the vicinity of the Earth in 2006–2009 are presented. The results are obtained by analyzing data from the PAMELA experiment aboard the Resurs DK-1 satellite. High-precision detection instruments provided an opportunity to identify GCR deuterons and measure their spectrum in the energy interval of 90–650MeV/nucleon. Spectra averaged over six-month intervals from the summer of 2006 to the summer of 2009 (the solar activity minimum) are presented. The influence of solar modulation on the observed spectrum is clearly seen in the results.  相似文献   
6.
V. V. Mikhailov  O. Adriani  G. A. Bazilevskaya  G. C. Barbarino  R. Bellotti  E. A. Bogomolov  M. Boezio  V. Bonvicini  M. Bongi  S. Bottai  A. Bruno  A. Vacchi  E. Vannuccini  G. I. Vasilyev  S. A. Voronov  A. M. Galper  C. De Santis  V. Di Felice  G. Zampa  N. Zampa  M. Casolino  D. Campana  A. V. Karelin  P. Carlson  G. Castellini  F. Cafagna  A. A. Kvashnin  A. N. Kvashnin  S. V. Koldashov  S. A. Koldobskiy  S. Y. Krutkov  A. A. Leonov  A. G. Mayorov  V. V. Malakhov  M. Martucci  L. Marcelli  W. Menn  M. Merge  Yu. V. Mikhailova  E. Mocchiutti  A. Monaco  N. Mori  R. Munini  G. Osteria  B. Panico  P. Papini  P. Picozza  M. Pearce  M. Ricci  S. B. Ricciarini  M. F. Runtso  M. Simon  R. Sparvoli  P. Spillantini  Y. I. Stozhkov  Y. T. Yurkin 《Physics of Atomic Nuclei》2018,81(4):515-519
Measurements of secondary-electron and secondary-positron fluxes below the geomagnetic cutoff in near-Earth space were performed by means of the PAMELA magnetic spectrometer installed on board the Resurs-DK1 satellite launched on June 15, 2006, in an elliptical orbit of inclination 70° and altitude 350 to 600 km. This spectrometer permits measuring the fluxes of electrons and positrons over a wide energy range, as well as determining their spatial distributions to a precision of about 2°. A calculation of particle trajectories in the geomagnetic field makes it possible to separate electrons and positrons originating from cosmic-ray interactions in the Earth’s magnetosphere. The spatial distributions of quasitrapped, trapped, and short-lived albedo positrons and electrons of energy above 70 MeV in the radiation belt were analyzed. The ratio of the electron-to-positron fluxes and the energy spectra of the electrons and positrons in question are indicative of different productionmechanisms for stably trapped and quasitrapped secondary particles.  相似文献   
7.
Different technological approaches for creating graphene quantum dots by the adsorption of hydrogen atoms are considered. The adsorption can occur both at convex portions of a distorted graphene nanoribbon and in the structure formed by two distorted graphene nanoribbon rows superimposed on each other at the places free from the ribbon crossings. It is shown that settlement of hydrogen atoms at convex portions of the nanoribbons is energetically favorable. This gives rise to the creation of insulating graphane (CH) nanodomains separating the conducting regions. As a result, a graphene quantum dot appears. The variation of the electron spectra of graphene quantum dots with the length of these graphane regions is discussed.  相似文献   
8.
Physics of Atomic Nuclei - An upgraded version of the combined optoacoustic gravitational radiation detector OGRAN is considered. This underground setup located at the Baksan Neutrino Observatory...  相似文献   
9.
A solution of the Kramers problem on isothermal slip of a quantum Fermi gas along a plane solid surface has been obtained. The reflection of molecules from the wall was supposed to be specular-diffuse. A model kinetic equation with the τ-model collision integral and with the collision frequency proportional to the molecular velocity was used. The slip velocity has been analyzed in relation to a parameter representing the ratio of the chemical potential to the product of Boltzmann’s constant by the absolute temperature.  相似文献   
10.
A variant of the cell model for describing a suspension of spherical particles in a viscous fluid is proposed. In contrast to the existing models, the requirement that the tangential component of the velocity reach a minimum with respect to the radial coordinate is imposed as additional condition on the cell surface. It is shown that this requirement corresponds to the physical pattern of flow around the system of particles. As a result, an expression is obtained for the drag of a particle in the system, and the rate of precipitation of suspensions and emulsions is calculated.Translated from Izvestiya Akademii Nauk SSSR, Mekhanika Zhidkosti i Gaza, No. 4, pp. 154–157, July–August, 1979.I thank Yu. P. Gupalo for suggesting the problem and discussing the results.  相似文献   
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